Search
Compare
main product photo

BC-8 | Huntmaster? | .300 Winchester Magnum Bolt Action Style Upper | 24" Parkerized Light-Weight Barrel | 1:10 Twist | 15" MLOK | with BCG & Charging Handle

Be the first to review this product
In stock
SKU
UABA-3175-300WMRLW24110P-15ASR
*works with BC-8 Lowers only
Special Price $624.95 Regular Price $809.99
Add to Wish List Add to Compare

Popular Accessories bought with this Complete Upper Assembly

More Choices:
bc-8-winchester-300-magnum-ammunition-180-grain-bo BC-8 | Winchester .300 Magnum Ammunition | 180 Grain | Box of 20
$56.99
300 Win Mag-SP-American-Whitetail-150-grain-ammo-3 Hornady American Whitetail .300 Win Mag Ammunition 20 Rounds InterLock SP 150 Grain
$55.99
30-rd-polymer-mag-556-300-blackout-BCA-PMG-M-55645 Bear Creek Arsenal | 30 Rd Polymer Mag | 5.56 NATO/.223 Wylde/.300 Blackout
$14.99
90%
4 Reviews
250th-Anniversary-Branded-30-Rd-Polymer-Mag-5.56-N 250th Anniversary Branded Black Magazine | 30 Rd Polymer Mag | 5.56 NATO/.223 Wylde/.300 Blackout
$17.76
100%
1 Review
bca-subwoofer-branded-30-round-mag-556-223-300-mag Subwoofer Branded Black Magazine | 30 Rd Polymer Mag | 5.56 NATO/.223 Wylde/.300 Blackout
$19.99
kci-usa-ak-47-7.62x39-20-round-magazine-KCI-MZ034- KCI USA AK-47 7.62x39 20-Round Magazine
$13.99
Duramag | AR-15 .400 Legend 10 Rd Magazine Duramag | AR-15 .400 Legend 10 Rd Magazine
$27.90
93%
8 Reviews
Duramag | AR-15 .400 Legend 5 Rd Magazine Duramag | AR-15 .400 Legend 5 Rd Magazine
$28.70
93%
3 Reviews

This Bear Creek Arsenal HUNTMASTER® .300 Winchester Magnum Bolt Action Style Complete Upper has an 24" light-weight barrel with a parkerized finish, and features a 1:10 twist, with a rifle length gas system. This .300 Win Mag upper includes the 15" MLOK split rail, an M4 flat-top 7075 billet aluminum upper receiver, a BCA bolt carrier group, a flash hider, and a right-side bolt action style charger and will work on the BC-8 lower assembly.

Magazine not included. Check out Magazines here!

 It is the responsibility of the consumer to ensure all state, local, federal, and ITAR regulations are followed.

You need to be 18 or older to purchase a rifle and 21 or older to purchase a handgun, Pistols, lower assembly or Ammunition.

* Note – We strive to provide the most accurate photographs of our product. Variations may occur in the skeletonized section of the handguard/flash hider you receive.

Attention SignAttention Sign

WARNING: This product can expose you to chemicals, such as lead and other petroleum products, which are known to the State of California to cause cancer and birth defects or other reproductive harm.  For more information go to the California P65 Warning site.

Includes BCG & Charging Handle

More Information
Color Anodized - Default
SKU UABA-3175-300WMRLW24110P-15ASR
Hand Guard MLOK Split Rail
Weight (lbs) 7.250000
Manufacturer Bear Creek Arsenal
Magazine Capacity N/A
Barrel Length 24
Profile Lightweight
Twist 1:10
Barrel Finish Parkerized
Material 4150 Chrome Moly Vanadium
Thread Pitch 5/8 x 24
Caliber .300 Winchester Magnum
Flutes Non-fluted
Gas System Rifle Length
Gas Block System 0.750
Charging Style Bolt Action Style
Classification Complete Upper Assembly
Platform BC-8
Bolt Material E9310
Receiver Material Billet
Choke Tubes No
Action Bolt Action

View Product Manuals

Customer Reviews
Customer Questions
What magazine/ammo does BCA recommend for each caliber?
Caliber Magazine Ammo Grain Weight Ammo Brands   BCA Status AR15 - 223/5.56 MagPul PMAG, MFT 55, 69, 75   Sierra   AR15 - 224 Valkyrie ASC 90 Sierra   AR15 - .22 ARC ASC 88 Hornady   ...
Read More
Do you have a storefront that I can buy in person?
No we do not have a storefront. You can only purchase online. Sanford, NC is our manufacturing plant. 
Read More
Please, mind that only logged in users can submit questions

 It is the responsibility of the consumer to ensure all state, local, federal, and ITAR regulations are followed.

You need to be 18 or older to purchase a rifle and 21 or older to purchase a handgun, Pistols, lower assembly or Ammunition.

* Note – We strive to provide the most accurate photographs of our product. Variations may occur in the skeletonized section of the handguard/flash hider you receive.

Attention SignAttention Sign

WARNING: This product can expose you to chemicals, such as lead and other petroleum products, which are known to the State of California to cause cancer and birth defects or other reproductive harm.  For more information go to the California P65 Warning site.

Ratings & Reviews

Be the first to review this product

Write your review
About the BC-8 | Huntmaster? | .300 Winchester Magnum Bolt Action Style Upper | 24" Parkerized Light-Weight Barrel | 1:10 Twist | 15" MLOK | with BCG & Charging Handle
Only registered users can write reviews. Please Sign in or create an account
Copyright © 2026 Bear Creek Arsenal, LLC. All Rights Reserved.